Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10365199 | Twin-spot light absorbing particulate monitoring instrument | Richard K. DeFreez, Michael A. Potter | 2019-07-30 |
| 9651038 | Pulsation suppressing air flow system for an air sampling instrument | Gerald A. Szpak | 2017-05-16 |
| 8284398 | Nephelometer with concentration-modulated sample flow | Richard K. DeFreez, Michael A. Potter | 2012-10-09 |